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Common Name Scientific Name Fed/ State/ <br />CNPS <br />Other <br />Status Habitat Micro Habitat Potential <br />to Occur <br />Justification for <br />Potential to <br />Occur <br />hogwallow starfish Hesperevax caulescens -/-/4.2 Valley and foothill <br />grassland (mesic, clay), <br />Vernal pools (shallow) <br />sometimes <br />alkaline. 0- <br />505m <br />moderate <br />Potentially <br />suitable habitat <br />present. <br />Brewer's western flax Hesperolinon breweri -/-/1B.2 <br />Chaparral, Cismontane <br />woodland, Valley and <br />foothill grassland <br /> <br /> <br />usually <br />serpentinite. <br />30-945m <br />low <br />Marginally <br />suitable habitat <br />present. <br />woolly rose-mallow Hibiscus lasiocarpos var. <br />occidentalis -/-/1B.2 Marshes and swamps <br />(freshwater) <br />Often in <br />riprap on <br />sides of <br />levees. 0- <br />120m <br />moderate <br />Potentially <br />suitable habitat <br />present. <br />Carquinez goldenbush Isocoma arguta -/-/1B.1 Valley and foothill <br />grassland (alkaline) 1-20m low <br />Potentially <br />suitable habitat <br />present, however <br />the Study Area is <br />located on the <br />edge of the <br />known range. <br />Northern California black <br />walnut Juglans hindsii -/-/1B.1 Riparian forest, Riparian <br />woodland 0-440m moderate <br />Potentially <br />suitable habitat <br />present. <br />Contra Costa goldfields Lasthenia conjugens FE/-/1B.1 <br />Cismontane woodland, <br />Playas (alkaline), Valley <br />and foothill grassland, <br />Vernal pools <br />mesic. 0- <br />470m moderate <br />Potentially <br />suitable habitat <br />present.